Delay time·100 BPM · quarter note
100 BPM · quarter note
600
ms
Frequency 1.667 Hz

100 BPM quarter note — 600 ms

At 100 BPM a quarter note lasts 600 ms. One beat is 600 ms and a bar is 2400 ms.

Tempo
100 BPM
Note
quarter note
Length
600 ms
Frequency
1.667 Hz
One beat
600 ms
One bar
2400 ms
Per bar
4

Reverb and LFO use the same number

Set a reverb’s pre-delay and decay to these figures and the tail lands on the beat. LFOs are often dialled in hertz rather than milliseconds, so the table also gives 1,000 divided by the length — that is the rate to use for a tremolo or auto-pan locked to eighth notes.

Nearby cells

Same tempo, other notes

Same note, other tempos

Worth knowing

  • One beat is 60,000 divided by the tempo; every other note is a multiple of it.
  • A dot adds half the value back; a triplet is two thirds.
  • LFOs are often set in hertz rather than milliseconds, so that figure is here too.
  • The bar figures assume a 4/4 time signature.

Common questions

Q. How many milliseconds is a quarter note at 100 BPM?

600 ms. One beat is 600 ms, and this length is a multiple of it.

Q. What rate do I give an LFO?

1.667 Hz — that is 1,000 divided by 600, the rate for a tremolo or auto-pan locked to this note.

Q. How many fit in a bar?

4, because a bar runs 2400 ms in 4/4.

Q. What is one step shorter?

A dotted eighth, which tightens the pattern.